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Finding the Fourth Proportional to 70,345.52, 97,079.10 and 38,514.38

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Solution

The fourth proportional to 70,345.52, 97,079.10 and 38,514.38 is: 53,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,345.52 : 97,079.10 = 38,514.38 : x
  2. Step 2: Convert to fraction form
    70,345.52/97,079.10 = 38,514.38/x
  3. Step 3: Cross multiply
    70,345.52x = 97,079.10 × 38,514.38
  4. Step 4: Simplify right side
    70,345.52x = 3,738,941,347.46
  5. Step 5: Solve for x
    x = 3,738,941,347.46/70,345.52
  6. Step 6: Final answer
    x = 53,151.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.